Home / 8,065.17-11,129.99-4,480.09

Finding the Fourth Proportional to 8,065.17, 11,129.99 and 4,480.09

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Solution

The fourth proportional to 8,065.17, 11,129.99 and 4,480.09 is: 6,182.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.17 : 11,129.99 = 4,480.09 : x
  2. Step 2: Convert to fraction form
    8,065.17/11,129.99 = 4,480.09/x
  3. Step 3: Cross multiply
    8,065.17x = 11,129.99 × 4,480.09
  4. Step 4: Simplify right side
    8,065.17x = 49,863,306.67
  5. Step 5: Solve for x
    x = 49,863,306.67/8,065.17
  6. Step 6: Final answer
    x = 6,182.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.